Tunaboyyy said:
Sure you can tow it with a 1/2 ton truck but the question is for how long?
There are a ton of deals out there on new and used Diesel trucks. Do it right the first time. 1/2 ton trucks are underbuilt. 3/4 ton trucks are overbuilt. Trying to save Registration costs is not going to make you big dollars. But it will cost you big dollars when you repair your 1/2 ton truck a few times then go buy a bigger truck to do the job right. Just my 2 cents. Check out Dieselplace.com lots of good info on towing.
X2, for sure.
The weakest links in a half ton:
transmission - they burn up
differential - the carrier bearings, axle bearings, and gears are too small, they also burn up
cooling system - plan to over heat your engine too. And that auto trans is super-heating the air flowing thru the radiator.
A good friend of mine had a really nice GMC half-ton extended cab with the bigger motor. Rated at 8-9000lbs to tow. He bought a toy-hauler for his family and was all excited about getting out to the desert with it. First trip, tows not too bad, but when they got home he said he could smell something really hot. In looking over the truck he realized he had burnt off all of the paint on the rear diff. Took it in the next week and traded it in on a crew cab duramax. Problem solved. His trailer was about 8000lbs.
For a ski boat/lake boat, pair of jet skiis, 15-18 footers, at 3-4000lbs, the light trucks and SUV's are fine. Once you get to 5-7000lbs and up, you really need to think about getting the right tool for the job. Particularly if you're going to do any towing. A mile to the launch ramp is one thing, any over the road work needs the real deal.